Home / 10,051.20-15,081.36-4,209.12

Finding the Fourth Proportional to 10,051.20, 15,081.36 and 4,209.12

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Solution

The fourth proportional to 10,051.20, 15,081.36 and 4,209.12 is: 6,315.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,051.20 : 15,081.36 = 4,209.12 : x
  2. Step 2: Convert to fraction form
    10,051.20/15,081.36 = 4,209.12/x
  3. Step 3: Cross multiply
    10,051.20x = 15,081.36 × 4,209.12
  4. Step 4: Simplify right side
    10,051.20x = 63,479,254.00
  5. Step 5: Solve for x
    x = 63,479,254.00/10,051.20
  6. Step 6: Final answer
    x = 6,315.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.